Home / 203,124.12-280,328.48-112,502.12

Finding the Fourth Proportional to 203,124.12, 280,328.48 and 112,502.12

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Solution

The fourth proportional to 203,124.12, 280,328.48 and 112,502.12 is: 155,262.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,124.12 : 280,328.48 = 112,502.12 : x
  2. Step 2: Convert to fraction form
    203,124.12/280,328.48 = 112,502.12/x
  3. Step 3: Cross multiply
    203,124.12x = 280,328.48 × 112,502.12
  4. Step 4: Simplify right side
    203,124.12x = 31,537,548,296.38
  5. Step 5: Solve for x
    x = 31,537,548,296.38/203,124.12
  6. Step 6: Final answer
    x = 155,262.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.